What is the historical operational record at Luis Munoz Marin International Airport?

Flights from Luis Munoz Marin International Airport (SJU) departed within 15 minutes of schedule 77% of the time across 202,026 historical flights in BTS coverage.

San Juan · SJU · Puerto Rico

How reliable is Luis Munoz Marin International Airport?

Flights from SJU departed within 15 minutes of schedule in 77% of 202,026 flights in official BTS history. Here’s the full picture before you book.

Find flights to San Juan →How we score →

0.0

Reliability score

on-time, cancellations & delays

IATA / ICAO

SJU · TJSJ

Coordinates

18.44, -66.00

Nearby airports

SIG10 km NRR44 km VQS64 km CPX75 km

Photo: Earth Science and Remote Sensing Unit, Lyndon B. Johnson Space Center / Public domain

Origin-airport operations

What the departure punctuality at SJU looks like

0.0

On-time departures

across 202,026 flights

77%

On-time departures

within 15 min of schedule

1.6%

Cancellation rate

of scheduled departures

16 min

Avg. departure delay

across delayed flights

202,026

Flights analyzed

medium confidence

Source: BTS Airport Operations · data through 2026-09-08. Role-specific BTS departure history; advisory context, not a guarantee for any flight.

Weather by month

Weather history isn’t available for SJU yet

PlaneSane shows month-by-month airport weather once enough historical METAR/IEM observations are loaded for the airport. This does not mean the airport has no weather data forever; it means the current climatology table has no monthly coverage for Luis Munoz Marin International Airport.

The read on SJU

What the numbers say about flying through Luis Munoz Marin International Airport

Across official performance history, flights from San Juan left within 15 minutes of schedule about 77% of the time over 202,026 flights. That's a respectable but unspectacular operational record. Pair it with a moderate cancellation rate of 1.6%. When a departure does run late, the typical delay is around 16 minutes.

None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to San Juan, read how we weigh it all in how the Peace of Mind Score works, and brush up with how to pick a reliable flight and avoiding weather delays.

Common questions about SJU

How reliable is Luis Munoz Marin International Airport (SJU)?: Flights from San Juan left within 15 minutes of schedule roughly 77% of the time across 202,026 flights of official history — a respectable but unspectacular operational record. The cancellation rate runs about 1.6%. It's advisory context, not a guarantee for any single flight.

Reliability guides

The Best Time of Year to Fly to Avoid Weather Delays

Season and airport decide how often weather grounds flights. Here's how to read it.

Snow, Storms, Fog, and Wind: How Weather Actually Delays Flights

Why a thunderstorm, a snowstorm, and a foggy morning each break your flight differently.

How to Pick a Reliable Flight (Not Just the Cheapest)

A practical checklist for booking the flight that gets you there — not just the cheap one.

Do Morning Flights Really Have Fewer Delays?

Yes — and there's a clear reason. How delays snowball through the day.

Planning a trip through San Juan?

Score real flights to and from SJU on reliability, weather, and connection safety — not just price.

Find flights to San Juan →Flights from SJU →

Compare fares on a partner site ↗

Opens a partner site; we may earn a commission if you book there. It's a general fare search — nothing on it is scored.